Chimney Relining in Rancho Palos Verdes, CA

Chimney Relining for Rancho Palos Verdes Homeowners

Rancho Palos Verdes is the most demanding place we work and the one where a chimney is least likely to be ordinary. The housing is largely 1960s and 1970s custom and semi-custom hillside building, with tall architectural stacks on steeply pitched roofs, often exposed on three sides. Three local conditions drive everything. The first is marine exposure: fog, salt and wind coming straight off the water, which corrodes any ferrous metal at the top of a stack and keeps masonry damp far longer than it dries. The second is wind loading on those tall exposed chimneys, which is why caps here must be mechanically fixed rather than friction fitted. The third is ground movement, and it is not historical: the Portuguese Bend landslide complex is active, and in the affected areas structures are being sheared continuously rather than in single events. A chimney in a moving zone will crack again after it is repaired, and we would rather tell an owner that plainly than take money for a repair that will not hold.

Tall exposed 1960s-70s hillside stacks, heavy salt and fog corrosion, high wind loading, and active land movement at Portuguese Bend.

A liner is what stands between the fire and the timber framing of your house, and a large number of chimneys in this county do not have a working one. Anything built here before about 1930 — much of Old Torrance, Uptown Whittier, the Long Beach bungalow neighbourhoods — was commonly built with no liner at all, just brick against brick. Later houses got terracotta tile, which is sound until the ground moves, and the ground here moves. Cracked and displaced tiles are the single most common serious defect we find on camera. The other driver is appliance change. Every gas conversion, every wood stove and every fireplace insert changes the volume and the temperature of what the flue has to carry, and an original masonry flue is nearly always far too large for a modern appliance. An oversized flue runs cool, which condenses acidic moisture inside the chimney and destroys it from within faster than any fire would.